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Gamete intrafallopian transfer (GIFT) is a tool of assisted reproductive technology against infertility. Eggs are removed from a woman's ovaries, and placed in one of the fallopian tubes , along with the man's sperm.
Zygote intra fallopian transfer (ZIFT) is an infertility treatment used when a blockage in the fallopian tubes prevents the normal binding of sperm to the egg. Egg cells are removed from a woman's ovaries, and in vitro fertilised. The resulting zygote is placed into the fallopian tube by the use of laparoscopy.
In zygote intrafallopian transfer (ZIFT), egg cells are removed from the woman's ovaries and fertilized in the laboratory; the resulting zygote is then placed into the fallopian tube. Cytoplasmic transfer is the technique in which the contents of a fertile egg from a donor are injected into the infertile egg of the patient along with the sperm.
In vitro fertilisation (IVF) is a process of fertilisation in which an egg is combined with sperm in vitro ("in glass"). The process involves monitoring and stimulating a woman's ovulatory process, then removing an ovum or ova (egg or eggs) from her ovaries and enabling a man's sperm to fertilise them in a culture medium in a laboratory.
When needed, reproductive technology can assist a married woman and man in their righteous desire to have children. This technology includes artificial insemination and in vitro fertilization. "The Church discourages artificial insemination or in vitro fertilization using sperm from anyone but the husband or an egg from anyone but the wife.
Methods are intended to "prevent the fertilization of an egg or implantation of a fertilized egg in the uterus." [10] Different forms of birth control have been around since ancient times, but widely available effective and safe methods only became available during the mid-1900s. [11]
The division of blastomeres from the zygote allows a single fertile cell to continue to cleave and differentiate until a blastocyst forms. The differentiation of the blastomere allows for the development of two distinct cell populations: the inner cell mass, which becomes the precursor to the embryo, and the trophectoderm, which becomes the precursor to the placenta.
In vitro fertilization: once the egg is obtained it is fertilized with the donor sperm in a laboratory. [7] This can be done by ICSI technique or regular In vitro fertilization. Once the egg is fertilized, embryos are obtained that are kept in the lab for 3 to 5 days, when they develop to blastocysts. [ 8 ]